This error does not necessarily mean that there is a problem. If you encounter this error and do not suspect a problem with your data, then you can eliminate this message in two ways. Change the level of the variable from Nominal to Interval in the data source.   Add the following line of code in the Project Start Code:  %let EM_TRAIN_MAXLEVELS=n; N equals the maximum number of levels that you want to allow. Use whichever method you judge to be statistically appropriate for your analysis. http://support.sas.com/kb/20/054.html ... View more